Comparison

Studdy vs DrPhos' Ionic Compounds

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Studdy

This AI-powered tutor assists students with homework by providing step-by-step explanations for math and science problems. It offers personalized tutoring, video tutorials, and practice problems to help improve understanding and grades.

Highlights
  • AI-powered step-by-step problem solver
  • Photo scanning for homework problems
  • Personalized 1:1 AI tutoring
  • Video tutorials for complex topics
  • Practice problem generation
  • Graphing for visual understanding
Features
Read full description

Studdy makes learning easy - Your Personal AI Tutor. Join over 500,000 students who've boosted their grades with Studdy Buddy - the friendliest, easiest, and most accurate AI Tutor. Having an AI Study Buddy improves test scores. The average Studdy user increased their GPA by 1.3 points last year! If you struggle with solving math and science homework problems, Studdy is made for you. Studdy's friendly AI Tutor breaks down and explains any homework problem in an easy to understand way. Ask questions on any step that confuses you. Your personalized AI Tutor will help you understand at your own pace. How Students Study with Studdy Buddy - Scan a photo of a problem - see the step by step explanation broken down in easy to understand way with the AI Solver - Watch video tutorials - understand complicated topics with custom video explanations - Get 1:1 tutoring - take a 1:1 lesson to go deep on any subject you need help with - Graph problems out to understand them visually and build a deeper foundation - Generate practice problems to help you study Popular High School Subjects on Studdy - Algebra, Geometry, Trigonometry, Precalculus, Calculus, Chemistry, Physics Popular College Subjects on Studdy - Calculus I, Calc II, Calc III, Multivariable Calculus, Differential Equations, Linear Algebra, Probability and Statistics Free Plan - Scan 5 problems a day - Supports every subject & grade - Unlimited tutoring through chat Studdy Plus (subscription*) - Unlimited scans & chat - Video Tutorials - 1:1 Lessons with AI Tutor - Generate extra practice problems - Increased accuracy *Pricing starts at US $6.99 / week (price may vary by region). Payment is charged to your Apple ID and subscriptions renew automatically unless canceled 24 hours before the end of the period. Manage or cancel anytime in App Store settings. Got questions or suggestions? - Email us at http://studdy.ai/contact - Terms of Service: https://studdy.ai/terms-of-service - Privacy Policy: http://studdy.ai/privacy-policy

About

DrPhos' Ionic Compounds

This app helps students learn and practice forming correct chemical formulas for ionic compounds. It supports a wide range of ions, including polyatomic ones, and dynamically generates formulas with proper subscripts and parentheses. It's designed to reinforce naming rules and charge balancing through an interactive interface.

Highlights
  • Extensive cation and anion list
  • Support for polyatomic ions
  • Real-time formula generation
  • Subscript and parenthesis formatting
  • Reinforces naming rules
  • Charge balancing practice
Features
Read full description

Master Ionic Compounds with Ease The Ionic Compound Builder helps students learn and practice forming correct chemical formulas using a wide range of cations and anions—including polyatomic ions. Simply select a cation and an anion, and the app dynamically generates the proper formula with correct subscripts and parentheses. Designed for high school and college chemistry students, this tool reinforces naming rules and charge balancing through an intuitive, interactive interface. Features: • Extensive built-in list of common cations and anions • Support for monoatomic and polyatomic ions • Real-time chemical formula generation • Proper use of subscripts and parentheses • Visual formatting to emphasize structure and charge Whether you’re learning ionic bonding for the first time or reviewing for an exam, this tool is an essential companion for mastering chemical formulas.

Screenshots

Studdy4 screens
DrPhos' Ionic Compounds3 screens

Verdict

The call

The clearest difference is price: Studdy at Free against DrPhos' Ionic Compounds's $0.99. Studdy also leads on ratings volume (13K vs 8) and iOS requirement (15.0 vs 17.0). DrPhos' Ionic Compounds's advantage is review sentiment (100% vs 89%). On rating, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Studdy is free to download; DrPhos' Ionic Compounds costs $0.99 up front. Studdy sells 35 in-app purchases, starting at $1.99 per 7 days and DrPhos' Ionic Compounds sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Studdy against 4.9 for DrPhos' Ionic Compounds. That said, the two scores are not equally well evidenced: Studdy has 13K ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 89% of Studdy's written reviews are positive against 100% of DrPhos' Ionic Compounds's.

UpkeepUpdate frequency

Studdy ships an update every 10 days, DrPhos' Ionic Compounds every 3 weeks. The most recent releases landed on September 24, 2026 and June 2, 2026 respectively.

Scorecard5 real differences · 5 level
Studdy versus DrPhos' Ionic Compounds: the parameters behind the verdict, then further details
ParameterStuddyDrPhos' Ionic Compounds
PriceFree — better$0.99
Rating4.8 (13K ratings)4.9 (8 ratings) — better
Positive reviews89.3% of reviews100.0% of reviews — better
Number of ratings13K — better8
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size64 MB15 MB
Age rating4+4+
DeveloperStuddy, LLCMonte L Helm

Customer experience

Studdy

All ratings12,746 ratings
Positive95.6%
Neutral1.8%
Negative2.5%
Written reviews534 reviews
Positive89.3%
Neutral3.4%
Negative7.3%

DrPhos' Ionic Compounds

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Studdy

Reported bugs

2 issues
  • Inconsistent performance across devices
  • Freezing or crashing on certain devices

Requested features

3 requests
  • More free usage allowance
  • Improved accuracy and reliability
  • Enhanced user interface and navigation

DrPhos' Ionic Compounds

Not enough reviews yet to summarise bugs or requests.

In-app purchases

35 purchases

Studdy

Subscriptions32
  • Studdy Unlimited7 Days trial$1.997 Days
  • Studdy Unlimited3 Days trial$1.997 Days
  • Studdy Unlimited3 Days trial2 variants$4.997 Days
Show 29 more
  • Studdy Unlimited3 Days trial$5.997 Days
  • Studdy Unlimited7 Days trial2 variants$6.997 Days
  • Studdy Unlimited3 Days trial2 variants$6.997 Days
  • Studdy Unlimited$6.997 Days
  • Power Monthly3 Days trial$9.991 Month
  • Studdy Lite7 Days trial2 variants$9.991 Month
  • Studdy Lite3 Days trial$9.991 Month
  • Studdy Unlimited7 Days trial$9.991 Month
  • Studdy Unlimited3 Days trial$9.991 Month
  • Studdy Pro7 Days trial2 variants$14.991 Month
  • Power Monthly3 Days trial$19.991 Month
  • Studdy Unlimited7 Days trial3 variants$19.991 Month
  • Studdy Unlimited3 Days trial2 variants$19.991 Month
  • Studdy Unlimited7 Days trial$29.991 Month
  • Studdy Unlimited3 Days trial$39.991 Year
  • Power Annual3 Days trial$59.991 Year
  • Studdy Lite7 Days trial2 variants$59.991 Year
  • Studdy Unlimited7 Days trial2 variants$59.991 Year
  • Studdy Lite3 Days trial$59.991 Year
  • Studdy Unlimited3 Days trial2 variants$59.991 Year
  • Studdy Unlimited7 Days trial$69.991 Year
  • Studdy Unlimited3 Days trial$69.991 Year
  • Studdy Pro3 Days trial$95.991 Year
  • Studdy Unlimited3 Days trial2 variants$99.991 Year
  • Studdy Unlimited7 Days trial2 variants$99.991 Year
  • Studdy Unlimited3 Days trial2 variants$143.991 Year
  • Studdy Unlimited7 Days trial2 variants$143.991 Year
  • Studdy Unlimited7 Days trial2 variants$179.991 Year
  • Studdy Unlimited3 Days trial$179.991 Year
One-time3
  • 5 Snaps Pack$0.99
  • 10 Snaps Pack$0.99
  • 30 Snaps Pack$4.99
11 purchases

DrPhos' Ionic Compounds

One-time11
  • Ionic Compound BuilderFree
  • Science Calculator$0.99
  • Significant Figures Counter$0.99
Show 8 more
  • Quadratic Equation Solver$0.99
  • Kinetics$0.99
  • Molar Mass Calculator$0.99
  • Naming Compounds$0.99
  • Reaction Balancer$0.99
  • Stoichiometry$0.99
  • Solution Concentrations$0.99
  • pH Calculator$0.99

Questions

Is Studdy free?
Studdy is free to download, with in-app purchases available.
Is DrPhos' Ionic Compounds free?
DrPhos' Ionic Compounds costs $0.99, and also offers in-app purchases.
Which has better reviews, Studdy or DrPhos' Ionic Compounds?
DrPhos' Ionic Compounds is rated higher. Studdy averages 4.8 out of 5 from 13K ratings, while DrPhos' Ionic Compounds averages 4.9 from 8 ratings.
Do Studdy or DrPhos' Ionic Compounds have ads?
Neither Studdy nor DrPhos' Ionic Compounds shows ads.
Which is updated more often, Studdy or DrPhos' Ionic Compounds?
Studdy ships an update every 10 days, and DrPhos' Ionic Compounds every 3 weeks. Most recently, Studdy was updated on September 24, 2026 and DrPhos' Ionic Compounds on June 2, 2026.

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